Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 101, NWS Hastings, NE

May 29, 1998Phelps County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 29, 1998, 12:39 AM CDT for Phelps County, Nebraska. It was in force for 46 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 29, 1998, 12:39 AM CDT (05:39 UTC)
Expired: May 29, 1998, 1:25 AM CDT
In force: 46 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Phelps County, NE

What was reported inside it

Time	Report	Where	Remark
May 29, 12:45 AM CDT	Thunderstorm Wind 52	Bertrand, NE
May 29, 12:55 AM CDT	Thunderstorm Wind 57	Holdrege, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 28, 9:15 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.7 hours before the alert went out and 121 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2186 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1952 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

026 
WUUS1 KGRI 290538 RRA
SVRGRI
NEC137-290625-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1239 AM CDT FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR PEOPLE IN...
  PHELPS COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 125 AM CDT

* AT 1237 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM NEAR BERTRAND OR ABOUT 15 MILES NORTHWEST OF
  HOLDREGE... MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LOOMIS BY 1250 AM
  HOLDREGE AND ATLANTA BY 1 AM

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

FAY

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 28, 2:25 PM CDT, 10 hours 14 minutes earlier.

Area forecast discussion, May 28, 2:25 PM CDT, 10 hours 14 minutes before

CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
225 PM CDT THU MAY 28 1998

...THREAT OF THUNDERSTORMS MAIN CHALLENGE THIS PACKAGE..

18Z SFC CHART SHOWED FRONT STILL ORIENTED NE-SW FROM YKN-HDE-HLC
WITH LITTLE MOVEMENT FROM 12Z.  DEW POINTS HAVE INCREASED INTO LOW
70S OVER EAST CENTRAL NEBRASKA AND ADAP NOW SHOWING CAP BLO 3
DEGREES THERE.  PCCAPE SHOWS VALUES AROUND 3000J/KG.  ASIDE FROM SFC
BNDRY DIFFICULT TO FIND MECHANISM TO TRIGGER CONVECTION.  250MB JET
HAS RETREATED NWD TO CANADIAN BORDER.  HARD TO FIND ANY WAVE NEARBY
ON WV IMGRY OR PROFILERS WITH EXCEPTION OF WEAK H7 WAVE IN SW FLOW
BTWN GRANADA AND MCCOOK.  SLOW DRIFT OF WAVE WILL TAKE SEVERAL MORE
HOURS BEFORE IT REACHES PRIMED AIR WITH LESS CAP.

ALL IN ALL WILL GO WITH HIGHEST POPS OVER NORTHERN AND EASTERN
SECTIONS FOR TONIGHT.  APPEARS THAT MORE ENERGY WILL EJECT OUT OF
WRN US TROUGH WITH ATMOSPHERE RECHARGING FOR LATE FRIDAY AND FRI NGT.
MODELS TRY TO ORIENT FRONT E/W BY THAT TIME PROVIDING BETTER SHEAR
TO THE NORTH OF IT FOR SEVERE WX AND CREATING MORE FAVORABLE
ENVIRONMENT FOR HEAVY RAIN AS WELL.

NOT GOING TO FUSS OVER GUIDANCE TEMPS A WHOLE LOT...LEANING MORE
TOWARD WARMER FWC NUMBERS THROUGHOUT.

GRI BB 061/086/061/088 344

KD

The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 12:20 AM CDT	Severe Thunderstorm Warning	GID	Harlan	45 min
May 29, 12:25 AM CDT	Severe Thunderstorm Warning	GID	Gosper	50 min
May 29, 12:35 AM CDT	Severe Thunderstorm Warning	GID	Franklin	45 min
May 29, 1:11 AM CDT	Severe Thunderstorm Warning	GID	Adams, Kearney, Webster	44 min
May 29, 1:27 AM CDT	Severe Thunderstorm Warning	GID	Hall	33 min
May 29, 1:40 AM CDT	Severe Thunderstorm Warning	GID	Clay	35 min
May 29, 2:35 AM CDT	Severe Thunderstorm Warning	GID	York	35 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.